Statistical Downscaling of ERA-Interim Forecast Precipitation Data in Complex Terrain Using LASSO Algorithm

Table 1

Predictors from ERA-Interim forecast dataset. All variables are aggregated from 3-hourly to daily averages.

Predictor	Description
P_ERA	ERA-Interim precipitation (mm)
MSLP	Mean sea-level pressure (hPa)
TCW	Total column water (mm)
U_10	10-meter 𝑈 wind component (m s^−1)
V_10	10-meter 𝑉 wind component (m s^−1)
WS_10	Wind speed (m s^−1)
FG_10	10-meter wind gust (m s^−1)
LSP	Large-scale precipitation (mm)
H_850	Geopotential height at 850 hPa (m)
H_700	Geopotential height at 700 hPa (m)
H_500	Geopotential height at 500 hPa (m)
T_850	Temperature at 850 hPa (°C)
T_700	Temperature at 700 hPa (°C)
T_500	Temperature at 500 hPa (°C)
RH_850	Relative humidity at 850 hPa (%)
RH_700	Relative humidity at 700 hPa (%)
RH_500	Relative humidity at 500 hPa (%)
SH_850	Specific humidity at 850 hPa (g kg^−1)
SH_700	Specific humidity at 700 hPa (g kg^−1)
SH_500	Specific humidity at 500 hPa (g kg^−1)